Force Base, California for Cat II testing, but on this date during one the airframe's first flights at that base, a chip detector warning light for the number three propeller illuminates, so the engine is shut down and the prop feathered. Heavy braking during extended roll-out as a result of landing with the collective lever disengaged causes brake fires in the main gear pods. Damage takes until 2 September to repair. 2 September A U.S. Navy Grumman F-11A Tiger, BuNo 141764 , of the Blue Angels aerobatic team, Blue Angel 5, crashes on the shore of Lake Ontario during the International Air Exhibition at Toronto, Ontario, Canada. The pilot, Lieutenant Commander Richard "Dick" Oliver, 31 years old, of Fort Mill, South Carolina, is killed. Coming out of a knife edge pass, followed by a roll, 5 contacts the lake surface at ~500 mph and literally skis across the surface, striking a six-foot high sheet steel piling retaining wall on the edge of Toronto Island Airport and disintegrating. Wreckage (turbine) is thrown as far as 3,483.6 feet from point of initial impact. 7 September Second (of five) Ling-Temco-Vought XC-142As, 62-5922, suffers failure of idler gear in number three engine gearbox during a pre-flight run-up at Edwards Air Force Base, California. Entire gearbox has to be replaced. Investigation reveals problem with inadequately supported aluminum pin that serves as an axle for this gear, making misalignment and eventual failure inevitable, so a fix is designed and the starboard gearboxes of all XC-142s are modified. 5 October Ryan XV-5A Vertifan, 62-4506, crashes at Edwards Air Force Base, California, killing Air Force test pilot Maj. David Tittle. During hover, the aircraft began uncontrolled roll to left, pilot ejected at 50 feet (15.24 m), but chute failed to deploy. 8 October Lockheed U-2C, 56-6690, of the 349th Strategic Reconnaissance Squadron, 100th Strategic Reconnaissance Wing, develops technical problems while on high-altitude reconnaissance flight over North Vietnam, attempts to recover to base but crashes near Bien Hoa, South Vietnam. Pilot Maj. Leo J. Stewart ejects and survives. This is the only U.S. Air Force U-2 loss in theatre during the War in Southeast Asia. 12 October Two North American F-100 Super Sabres of the USAF Thunderbirds demonstration team collide during practice for a show at Sheppard AFB, Texas, at Indian Springs Air Force Auxiliary Field, Nevada, killing two of the three pilots. The jets were performing opposing half